PI6LC48P0301LEX

Overview

The PI6LC48P0301LEX is a 3-output LVPECL synthesizer from Diodes Incorporated's HiFlex family, designed for Ethernet reference clock generation. It supports 2.5V or 3.3V supply modes and accepts either a 19.53125MHz/25MHz crystal or an LVCMOS/LVTTL single-ended input. The device generates output frequencies of 125MHz, 156.25MHz, 312.5MHz, and 625MHz via four frequency select pins. RMS phase jitter at 156.25MHz is typically 0.16ps (1.875MHz–20MHz) and 0.32ps (12kHz–20MHz). It is housed in a lead-free 24-TSSOP package.

Feature Summary

• Three differential LVPECL output pairs with selectable divider settings
• Ultra-low phase jitter: 0.16ps typical at 156.25MHz (1.875MHz–20MHz)
• Dual input options: Crystal oscillator interface or LVCMOS/LVTTL reference
• Supports 2.5V and 3.3V full supply voltage modes

Applications

• Networking systems
• Ethernet interface circuits

Procurement Notes

Verify the ordering suffix 'LEX' corresponds to tape-and-reel packaging as specified in the datasheet. Confirm that the component meets RoHS3 and Green specifications. Ensure the specific temperature grade (Commercial or Industrial) matches the system requirements, as the base model covers both ranges depending on the suffix.

Selection Notes

Select this component when low phase jitter is critical for Ethernet applications. Verify that the required output frequencies (125MHz, 156.25MHz, 312.5MHz, 625MHz) align with the available divider configurations. Ensure the power supply design accommodates separate VDDA, VDDO_A, and VDDO_B pins with appropriate filtering to maintain jitter performance.

Part Context

The PI6LC48P0301 belongs to the HiFlex family of high-performance clock solutions by Pericom Semiconductor Corporation, now part of Diodes Incorporated. It is specifically optimized for generating Ethernet reference clock frequencies using proprietary low phase noise PLL technology.

Replacement Considerations

Datasheet references the PI6C20800B block diagram but does not explicitly list it as a direct replacement. Check the manufacturer's cross-reference documentation for verified substitutes within the HiFlex family.